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    Reproduction and population growth in free-ranging mantled howling monkeys.

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    Date
    1980-07
    Author
    Glander, Kenneth Earl
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    Abstract
    Free-ranging mantled howling monkey (Alouatta palliata Gray) females experienced a regular estrus cycle averaging 16.3 days, demonstrated sexual skin changes, and participated in multiple matings before becoming pregnant. Gestation averaged 186 days. The average interval between births was 22.5 months. Sexual maturity occurred at approximately 36 and 42 months for females and males, respectively. Female age at first birth was about 3 1/2 years. Births were scattered during some years and clustered during others. The age, rank, and parity of the females affected infant survival. More female than male infants survived to one year of age. Increased population size was the result of immigration rather than births.
    Type
    Journal article
    Subject
    Age Factors
    Alouatta
    Animals
    Behavior, Animal
    Birth Intervals
    Cebidae
    Costa Rica
    Estrus
    Female
    Male
    Population Dynamics
    Population Growth
    Pregnancy
    Reproduction
    Sex Characteristics
    Sexual Behavior, Animal
    Sexual Maturation
    Permalink
    https://hdl.handle.net/10161/6289
    Published Version (Please cite this version)
    10.1002/ajpa.1330530106
    Publication Info
    Glander, Kenneth Earl (1980). Reproduction and population growth in free-ranging mantled howling monkeys. Am J Phys Anthropol, 53(1). pp. 25-36. 10.1002/ajpa.1330530106. Retrieved from https://hdl.handle.net/10161/6289.
    This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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    Scholars@Duke

    Glander

    Kenneth Earl Glander

    Professor Emeritus of Evolutionary Anthropology
    Primate ecology and social organization: the interaction between feeding patterns and social structure; evolutionary development of optimal group size and composition; factors affecting short and long-term demographic changes in stable groups; primate use of regenerating forests.
    Open Access

    Articles written by Duke faculty are made available through the campus open access policy. For more information see: Duke Open Access Policy

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